Aliens likely to use high-power directed beams to contact Earth: Study

Aliens likely to use high-power directed beams to contact Earth: Study

For more than half a century, the search for extraterrestrial intelligence has been built on the assumption that if aliens exist and try to communicate, their signals will be faint, scattered, and easy to miss.  So astronomers have spent decades scanning narrow slices of the radio spectrum, hoping to catch a weak signal buried in cosmic noise. However, a new study suggests something totally different—if an advanced civilization actually wanted t…

High-Intensity Beams, Not Whispers: Study Suggests Aliens Would Send Strong Signals

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